Expression Blend 4 creates (I think an incomplete template) when editing a copy of the autocompletebox

If I simple edit the wpftoolkits Autocomplete box with Expression Blend 4 and make no changes to that template but run my project, the popup is blank.  I think that every thing is working still because when I type the autocomplete is still working, but I cannot see my filtered results anymore in the popup.

<ResourceDictionary
	xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
	xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:System_Windows_Controls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Input.Toolkit" xmlns:System="clr-namespace:System;assembly=mscorlib"><!-- Resource dictionary entries should be defined here. --><Style x:Key="ACB_STYLE" TargetType="{x:Type System_Windows_Controls:AutoCompleteBox}"><Setter Property="IsTabStop" Value="False"/><Setter Property="Padding" Value="2"/><Setter Property="BorderThickness" Value="1"/><Setter Property="BorderBrush"><Setter.Value><LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"><GradientStop Color="#FFA3AEB9" Offset="0"/><GradientStop Color="#FF8399A9" Offset="0.375"/><GradientStop Color="#FF718597" Offset="0.375"/><GradientStop Color="#FF617584" Offset="1"/></LinearGradientBrush></Setter.Value></Setter><Setter Property="Background" Value="White"/><Setter Property="Foreground" Value="Black"/><Setter Property="MinWidth" Value="45"/><Setter Property="Template"><Setter.Value><ControlTemplate TargetType="{x:Type System_Windows_Controls:AutoCompleteBox}"><Grid Opacity="{TemplateBinding Opacity}"><TextBox x:Name="Text" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Foreground="{TemplateBinding Foreground}" IsTabStop="True" Margin="0" Padding="{TemplateBinding Padding}" Style="{TemplateBinding TextBoxStyle}"/><Border x:Name="ValidationErrorElement" BorderBrush="#FFDB000C" BorderThickness="1" CornerRadius="1" Visibility="Collapsed"><Border.ToolTip><ToolTip x:Name="validationTooltip" Placement="Right"><ToolTip.Triggers><EventTrigger RoutedEvent="FrameworkElement.Loaded"><BeginStoryboard><Storyboard><ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="IsHitTestVisible" Storyboard.TargetName="validationTooltip"><DiscreteObjectKeyFrame KeyTime="0"><DiscreteObjectKeyFrame.Value><System:Boolean>True</System:Boolean></DiscreteObjectKeyFrame.Value></DiscreteObjectKeyFrame></ObjectAnimationUsingKeyFrames></Storyboard></BeginStoryboard></EventTrigger></ToolTip.Triggers><ToolTip.Template><ControlTemplate TargetType="{x:Type ToolTip}"><Grid x:Name="Root" Margin="5,0" Opacity="0" RenderTransformOrigin="0,0"><Grid.RenderTransform><TranslateTransform X="-25"/></Grid.RenderTransform><Border Background="#052A2E31" CornerRadius="5" Margin="4,4,-4,-4"/><Border Background="#152A2E31" CornerRadius="4" Margin="3,3,-3,-3"/><Border Background="#252A2E31" CornerRadius="3" Margin="2,2,-2,-2"/><Border Background="#352A2E31" CornerRadius="2" Margin="1,1,-1,-1"/><Border Background="#FFDC000C" CornerRadius="2"><TextBlock Foreground="White" MaxWidth="250" Margin="8,4" TextWrapping="Wrap" Text="{Binding (Validation.Errors)[0].ErrorContent}"/></Border></Grid></ControlTemplate></ToolTip.Template></ToolTip></Border.ToolTip><Grid Background="Transparent" HorizontalAlignment="Right" Height="12" Margin="1,-4,-4,0" VerticalAlignment="Top" Width="12"><Path Data="M1,0L6,0A2,2,90,0,1,8,2L8,7z" Fill="#FFDC000C" Margin="1,3,0,0"/><Path Data="M0,0L2,0 8,6 8,8" Fill="White" Margin="1,3,0,0"/></Grid></Border><Popup x:Name="Popup"><Grid Background="{TemplateBinding Background}" Opacity="{TemplateBinding Opacity}"><Border x:Name="PopupBorder" BorderThickness="0" Background="#11000000" HorizontalAlignment="Stretch" Opacity="0"><Border.RenderTransform><TranslateTransform X="1" Y="1"/></Border.RenderTransform><Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="0" HorizontalAlignment="Stretch" Opacity="1" Padding="0"><Border.Background><LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"><GradientStop Color="#FFDDDDDD" Offset="0"/><GradientStop Color="#AADDDDDD" Offset="1"/></LinearGradientBrush></Border.Background><Border.RenderTransform><TransformGroup><TranslateTransform X="-1" Y="-1"/></TransformGroup></Border.RenderTransform><ListBox x:Name="Selector" BorderThickness="0" Background="{TemplateBinding Background}" Foreground="{TemplateBinding Foreground}" ScrollViewer.HorizontalScrollBarVisibility="Auto" ItemTemplate="{TemplateBinding ItemTemplate}" ItemContainerStyle="{TemplateBinding ItemContainerStyle}" ScrollViewer.VerticalScrollBarVisibility="Auto"/></Border></Border></Grid></Popup></Grid></ControlTemplate></Setter.Value></Setter></Style></ResourceDictionary>